Home / 12,025.60-16,596.96-6,720.80

Finding the Fourth Proportional to 12,025.60, 16,596.96 and 6,720.80

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Solution

The fourth proportional to 12,025.60, 16,596.96 and 6,720.80 is: 9,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.60 : 16,596.96 = 6,720.80 : x
  2. Step 2: Convert to fraction form
    12,025.60/16,596.96 = 6,720.80/x
  3. Step 3: Cross multiply
    12,025.60x = 16,596.96 × 6,720.80
  4. Step 4: Simplify right side
    12,025.60x = 111,544,848.77
  5. Step 5: Solve for x
    x = 111,544,848.77/12,025.60
  6. Step 6: Final answer
    x = 9,275.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.